Ligament pretensioning device convenient to use

Abstract

The invention relates to the technical field of medical instruments, in particular to a ligament pretensioning device convenient to use. Comprising a sliding platform, a sliding groove formed in the length direction of the sliding platform, a sliding support slidably connected to the sliding platform through the sliding groove, a fixed support located on one side of the sliding groove and fixedly arranged on the sliding platform, and a fixing assembly arranged on the other side of the sliding groove and used for fixing the sliding support. Firstly, muscular tissue on the ligament is cleaned up, then the two ends of the ligament are bound to the fixed support and the sliding support respectively, then the sliding support bolt slides in the direction away from the fixed support through the fixing assembly, the ligament is pre-tensioned, after the ligament is pre-tensioned, medical staff do not need other operation, and the sliding support is fixed by the fixing assembly. Through the fixing assembly, due to the characteristics of the fixing assembly, the pressure applied to the ligament by the medical staff can be counteracted by the fixing assembly, and the purpose of improving the stability of the sliding support is achieved.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular to a ligament pre-tensioner that is convenient to use. Background Art

[0002] A ligament pre-tensioner, that is, a device used to stretch ligaments during ligament reconstruction. Its main structure includes a sliding platform, a fixed bracket fixedly arranged on one side of the sliding platform, a sliding bracket slidably connected to the sliding platform, and a fixing component arranged on the bottom surface of the sliding bracket. The fixing component includes fixing blocks inserted on both sides of the bottom surface of the sliding bracket and a push rod extending from the top of the sliding bracket between the two fixing blocks. The usage method is as follows: First, clean the muscle tissue on the ligament, then bind the two ends of the ligament to the fixed bracket and the sliding bracket respectively, then pull the sliding bracket to slide, so that the ligament is pre-tensioned. At this time, press the push rod downward so that the push rod is located between the two fixing blocks, push the two fixing blocks to abut against the sliding platform, so that the sliding bracket is fixed, then use high-strength suture to braid and suture the ligament. After the suture is completed, fold the ligament three times. After the folding is completed, take a measuring tool to measure. Finally, bind the two ends of the triple-folded ligament to the fixed bracket and the sliding bracket respectively, then pull the sliding bracket to slide again, so that the ligament is pre-tensioned again, and then suture again.

[0003] However, in the prior art, since its fixing method is to fix the sliding bracket by the fixing block abutting against the sliding platform, when medical staff braid and suture the ligament, the fixing of the fixing block will cause the fixing block due to the pressure exerted by the medical staff on the ligament, and the sliding bracket will be very unstable. Therefore, this application proposes a ligament pre-tensioner that is convenient to use to improve the stability of the sliding bracket. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of this application is to provide a ligament pre-tensioner that is convenient to use to improve the stability of the sliding bracket.

[0005] The above object of this application is achieved by the following technical solutions: A ligament pre-tensioner that is convenient to use, including a sliding platform, a chute opened along the length direction of the sliding platform, a sliding bracket slidably connected to the sliding platform through the chute, a fixed bracket fixedly arranged on the sliding platform on one side of the chute, and a fixing component arranged on the other side of the chute for fixing the sliding bracket.

[0006] Further, the fixing component includes a fixing plate arranged on the side of the chute away from the fixed bracket and a fixing bolt passing through the fixing plate and threadedly connected to the sliding bracket, and the fixing bolt is threadedly connected to the fixing plate.

[0007] By adopting the above technical solution, through the setting of the fixing component, first, the muscle tissue on the ligament is cleaned up, then the two ends of the ligament are respectively bound to the fixing bracket and the sliding bracket, and then the fixing bolt is screwed counterclockwise to make the sliding bracket slide away from the fixing bracket, so that the ligament is pre-tensioned. After the ligament is pre-tensioned, the medical staff does not need to perform other operations, and the sliding bracket has been fixed by the fixing bolt, making it more convenient for the medical staff to pre-tension the ligament. Moreover, for the sliding bracket fixed by the fixing bolt, due to the limitation of the fixing bolt and the fixing plate, the pressure exerted by the medical staff on the ligament will be offset by the fixing plate, thus making the sliding bracket more stable, achieving the purpose of improving the stability of the sliding bracket.

[0008] Further, a cross handle is fixedly provided at one end of the fixing bolt away from the sliding bracket.

[0009] By adopting the above technical solution, the setting of the cross handle facilitates the medical staff to turn the fixing bolt.

[0010] Further, a support bracket for supporting the sliding platform is provided on the bottom surface of the sliding platform. The support bracket includes two support rods fixedly connected to the bottom surface of the sliding platform at the upper ends and a support plate fixedly connected to the bottom surfaces of the support rods.

[0011] By adopting the above technical solution, the support bracket can support the sliding platform farther away from the table, reserving enough space for the medical staff to turn the fixing bolt, so that the medical staff will not be restricted by space when turning the fixing bolt, making it more convenient for the medical staff to turn the fixing bolt.

[0012] Further, a support structure is provided on one side of the sliding platform away from the fixing bracket. A tendon organ measuring device is provided at the upper end of the support structure. The support structure includes a support column fixedly provided on the sliding platform and a placement plate fixedly provided on the top surface of the support column. The tendon organ measuring device is installed on the placement plate.

[0013] By adopting the above technical solution, through the setting of the support structure, after the medical staff folds the ligament, they only need to put the folded ligament into the tendon organ measuring device for detection, so that the medical staff can measure the ligament without taking the tendon organ measuring device, making it more convenient for the medical staff to measure the ligament.

[0014] Further, an installation structure for installing the tendon organ measuring device is provided on the placement plate.

[0015] Further, the installation structure includes an installation plate provided on one side of the placement plate, a connection screw hole opened on the side of the installation plate close to the tendon organ measuring device, and a connection bolt provided on one side of the tendon organ measuring device and threadedly connected to the installation plate through the connection screw hole.

[0016] By adopting the above technical solution, through the setting of the installation structure, medical staff can adjust the angle of the tendon device measurer according to their own habits, so as to facilitate the medical staff to use the tendon device measurer to measure the ligament, and further facilitate the medical staff to use the tendon device measurer to measure the ligament.

[0017] Furthermore, an adjusting component is provided on the side of the placing plate away from the mounting plate.

[0018] Furthermore, the adjusting component includes an adjusting plate fixedly arranged on the side of the placing plate away from the mounting plate and opposite to the mounting plate, an adjusting screw hole opened on the side of the adjusting plate close to the tendon device measurer, a mounting screw hole opened on the side of the tendon device measurer close to the adjusting screw hole, and an adjusting bolt passing through the adjusting plate through the adjusting screw hole and threadedly connected to the adjusting plate.

[0019] By adopting the above technical solution, although the setting of the installation structure facilitates the medical staff to use the tendon device measurer to measure the ligament, only the mounting plate supports the tendon device measurer through the connecting bolts, which results in the connecting bolts needing to bear the entire weight of the tendon device measurer, greatly increasing the probability of the connecting bolts breaking and reducing the service life of the connecting bolts. Through the setting of the adjusting component, the side of the tendon device measurer away from the mounting plate can be supported by the adjusting bolt through the adjusting plate, so that both sides of the tendon device measurer are supported by the connecting bolts and the adjusting bolts respectively, dispersing the weight of the tendon device measurer to the connecting bolts and the adjusting bolts, reducing the burden on the connecting bolts, reducing the probability of the connecting bolts breaking, and improving the service life of the connecting bolts. Moreover, when the medical staff wants to replace the tendon device measurer of a different model, they only need to turn the adjusting bolt to disengage from the tendon device measurer, and then rotate the tendon device measurer to disengage the connecting bolts from the mounting plate to replace the tendon device measurer.

[0020] Furthermore, a round handle is provided at one end of the adjusting bolt away from the tendon device measurer.

[0021] By adopting the above technical solution, it is convenient for medical staff to turn the adjusting bolt.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the setting of the fixing component, after binding the two ends of the ligament to the fixing bracket and the sliding bracket respectively, only need to turn the fixing bolt to make the sliding bracket slide away from the fixing bracket, so that the ligament is pre-tensioned. After the ligament is pre-tensioned, without other operations by medical staff, the sliding bracket has been fixed by the fixing bolt, making it more convenient for medical staff to pre-tension the ligament. And for the sliding bracket fixed by the fixing bolt, due to the limitation of the fixing bolt and the fixing plate, the pressure applied by medical staff to the ligament will be offset by the fixing plate, thus making the sliding bracket more stable, achieving the purpose of improving the stability of the sliding bracket. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0025] Figure 2 is Figure 1 the enlarged view of part A in

[0026] Reference Signs: 1. Sliding Platform; 10. Chute; 11. Sliding Bracket; 12. Fixing Bracket; 13. Tendon Measuring Instrument; 2. Fixing Component; 20. Fixing Plate; 21. Fixing Bolt; 22. Cross Handle; 3. Support Bracket; 30. Support Rod; 31. Support Plate; 4. Support Structure; 40. Support Column; 41. Placing Plate; 5. Installation Structure; 50. Installation Plate; 51. Connecting Screw Hole; 52. Connecting Bolt; 6. Adjusting Component; 60. Adjusting Plate; 61. Adjusting Screw Hole; 62. Adjusting Bolt; 63. Round Handle. Detailed Description of the Embodiment

[0027] The following further describes the present application in detail with reference to the drawings.

[0028] Embodiment, refer to Figure 1, A convenient-to-use ligament pre-tensioner, comprising a sliding platform 1, a chute 10 opened along the length direction of the sliding platform 1, a sliding bracket 11 slidably connected to the sliding platform 1 through the chute 10, a fixed bracket 12 fixedly arranged on the sliding platform 1 on one side of the chute 10, and a fixing component 2 arranged on the other side of the chute 10 for fixing the sliding bracket 11. The fixing component 2 includes a fixing plate 20 arranged on the side of the chute 10 away from the fixed bracket 12 and a fixing bolt 21 passing through the fixing plate 20 and threadedly connected to the sliding bracket 11. The fixing bolt 21 is threadedly connected to the fixing plate 20. Through the arrangement of the fixing component 2, first, the muscle tissue on the ligament is cleaned, then the two ends of the ligament are respectively bound to the fixed bracket 12 and the sliding bracket 11, and then the fixing bolt 21 is rotated counterclockwise to make the sliding bracket 11 slide in the direction away from the fixed bracket 12, so that the ligament is pre-tensioned. After the ligament is pre-tensioned, the medical staff does not need to perform other operations, and the sliding bracket 11 has been fixed by the fixing bolt 21, making it more convenient for the medical staff to pre-tension the ligament. Moreover, due to the limitation of the fixing bolt 21 and the fixing plate 20, the pressure exerted by the medical staff on the ligament will be offset by the fixing plate 20, thus making the sliding bracket 11 more stable, achieving the purpose of improving the stability of the sliding bracket 11. And a cross handle 22 is fixedly arranged at one end of the fixing bolt 21 away from the sliding bracket 11 for the convenience of the medical staff to rotate the fixing bolt 21.

[0029] In this embodiment, a support bracket 3 for supporting the sliding platform 1 is arranged on the bottom surface of the sliding platform 1. The support bracket 3 includes two support rods 30 fixedly connected to the bottom surface of the sliding platform 1 at the upper ends and a support plate 31 fixedly connected to the bottom surface of the support rods 30, so that the support bracket 3 can support the sliding platform 1 farther away from the tabletop, leaving enough space for the medical staff to rotate the fixing bolt 21, so that the medical staff will not be restricted by space when rotating the fixing bolt 21, making it more convenient for the medical staff to rotate the fixing bolt 21.

[0030] In this embodiment, a support structure 4 is arranged on the side of the sliding platform 1 away from the fixed bracket 12. A tendon organ measurer 13 is arranged at the upper end of the support structure 4. The support structure 4 includes a support column 40 fixedly arranged on the sliding platform 1 and a placement plate 41 fixedly arranged on the top surface of the support column 40. The tendon organ measurer 13 is installed on the placement plate 41. Through the arrangement of the support structure 4, after the medical staff folds the ligament, they only need to put the folded ligament into the tendon organ measurer 13 for detection, so that the medical staff can measure the ligament without taking the tendon organ measurer 13, making it more convenient for the medical staff to measure the ligament.

[0031] Refer to Figure 2In this embodiment, an installation structure 5 for installing the tendon organ measurer 13 is provided on the placement plate 41. The installation structure 5 includes an installation plate 50 arranged on one side of the placement plate 41, a connection screw hole 51 opened on the side of the installation plate 50 close to the tendon organ measurer 13, and a connection bolt 52 arranged on one side of the tendon organ measurer 13 and threadedly connected to the installation plate 50 through the connection screw hole 51. Through the setting of the installation structure 5, medical staff can adjust the angle of the tendon organ measurer 13 according to their own habits, so as to facilitate the medical staff to use the tendon organ measurer 13 to measure the ligament, and further facilitate the medical staff to use the tendon organ measurer 13 to measure the ligament.

[0032] Although the setting of the installation structure 5 facilitates the medical staff to use the tendon organ measurer 13 to measure the ligament, only the installation plate 50 supports the tendon organ measurer 13 through the connection bolt 52. This causes the connection bolt 52 to bear the entire weight of the tendon organ measurer 13, greatly increasing the probability of the connection bolt 52 breaking and reducing the service life of the connection bolt 52. To solve this technical problem, in this embodiment, an adjustment component 6 is provided on the side of the placement plate 41 away from the installation plate 50. The adjustment component 6 includes an adjustment plate 60 fixedly arranged on the side of the placement plate 41 away from the installation plate 50 and opposite to the installation plate 50, an adjustment screw hole 61 opened on the side of the adjustment plate 60 close to the tendon organ measurer 13, an installation screw hole opened on the side of the tendon organ measurer 13 close to the adjustment screw hole 61, and an adjustment bolt 62 passing through the adjustment plate 60 through the adjustment screw hole 61 and threadedly connected to the adjustment plate 60. Through the setting of the adjustment component 6, the side of the tendon organ measurer 13 away from the installation plate 50 can be supported by the adjustment plate 60 through the adjustment bolt 62, so that both sides of the tendon organ measurer 13 are supported by the connection bolt 52 and the adjustment bolt 62 respectively, dispersing the weight of the tendon organ measurer 13 onto the connection bolt 52 and the adjustment bolt 62, reducing the burden on the connection bolt 52, reducing the probability of the connection bolt 52 breaking, and enhancing the service life of the connection bolt 52. And when the medical staff wants to replace the tendon organ measurer 13 of different models, they only need to turn the adjustment bolt 62 to disconnect from the tendon organ measurer 13, and then rotate the tendon organ measurer 13 to disconnect the connection bolt 52 from the installation plate 50 to replace the tendon organ measurer 13. And a circular handle 63 is provided at one end of the adjustment bolt 62 away from the tendon organ measurer 13 to facilitate the medical staff to turn the adjustment bolt 62.

[0033] Specific implementation process: First, clean the muscle tissue on the ligament, then bind the two ends of the ligament to the fixed bracket 12 and the sliding bracket 11 respectively. Then, counterclockwise rotate the fixing bolt 21 to make the sliding bracket 11 slide away from the fixed bracket 12, so that the ligament is pre-tensioned. Then, use high-strength suture to braid and suture the ligament. After the suture is completed, fold the ligament three times. After the folding is completed, put the ligament into the tendon measuring device 13 for measurement. After the measurement is completed, clockwise rotate the fixing bolt 21 to make the sliding bracket 11 close to the fixed bracket 12. Then, bind the two ends of the three-folded ligament to the fixed bracket 12 and the sliding bracket 11 respectively. Then, counterclockwise rotate the fixing bolt 21 to make the sliding bracket 11 slide away from the fixed bracket 12, so that the ligament is pre-tensioned again, and then suture again.

[0034] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of the application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A ligament pre-tensioner that is convenient to use, characterized in that, It includes a sliding platform (1), a chute (10) opened along the length direction of the sliding platform (1), a sliding bracket (11) slidably connected to the sliding platform (1) through the chute (10), a fixed bracket (12) fixedly arranged on the sliding platform (1) on one side of the chute (10), and a fixing component (2) arranged on the other side of the chute (10) for fixing the sliding bracket (11).

2. The ligament pre-tensioner that is convenient to use according to claim 1, wherein The fixing component (2) includes a fixing plate (20) arranged on the side of the chute (10) away from the fixed bracket (12) and a fixing bolt (21) passing through the fixing plate (20) and threadedly connected to the sliding bracket (11), and the fixing bolt (21) is threadedly connected to the fixing plate (20).

3. The convenient-to-use ligament pretensioner according to claim 2, characterized in that, A cross handle (22) is fixedly arranged at one end of the fixing bolt (21) away from the sliding bracket (11).

4. The convenient-to-use ligament pretensioner according to claim 1, characterized in that, A support bracket (3) for supporting the sliding platform (1) is arranged on the bottom surface of the sliding platform (1), and the support bracket (3) includes two support rods (30) fixedly connected to the bottom surface of the sliding platform (1) at the upper ends and a support plate (31) fixedly connected to the bottom surfaces of the support rods (30).

5. The ligament pre-tensioner that is convenient to use according to claim 1, wherein, A support structure (4) is arranged on one side of the sliding platform (1) away from the fixed bracket (12), a tendon organ measurer (13) is arranged at the upper end of the support structure (4), the support structure (4) includes a support column (40) fixedly arranged on the sliding platform (1) and a placement plate (41) fixedly arranged on the top surface of the support column (40), and the tendon organ measurer (13) is installed on the placement plate (41).

6. The convenient ligament pretensioner according to claim 5, wherein, An installation structure (5) for installing the tendon organ measurer (13) is arranged on the placement plate (41).

7. The convenient ligament pretensioner according to claim 6, wherein, The installation structure (5) includes an installation plate (50) arranged on one side of the placement plate (41), a connection screw hole (51) opened on the side of the installation plate (50) close to the tendon organ measurer (13), and a connection bolt (52) arranged on one side of the tendon organ measurer (13) and threadedly connected to the installation plate (50) through the connection screw hole (51).

8. The convenient ligament pretensioner according to claim 7, wherein, An adjustment component (6) is arranged on the side of the placement plate (41) away from the installation plate (50).

9. The convenient-to-use ligament pretensioner according to claim 8, characterized in that, The adjustment component (6) includes an adjustment plate (60) fixedly arranged on the side of the placement plate (41) away from the installation plate (50) and opposite to the installation plate (50), an adjustment screw hole (61) opened on the side of the adjustment plate (60) close to the tendon organ measurer (13), an installation screw hole opened on the side of the tendon organ measurer (13) close to the adjustment screw hole (61), and an adjustment bolt (62) passing through the adjustment plate (60) through the adjustment screw hole (61) and threadedly connected to the adjustment plate (60).

10. The convenient-to-use ligament pretensioner according to claim 9, characterized in that, A circular handle (63) is arranged at one end of the adjustment bolt (62) away from the tendon organ measurer (13).

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